Need info on the limitations of Entourage X as an Exchange client

I am looking for a grid, or feature list, or anything really that will
let me know what Exchange features I will lose if I switch from
running an Outlook 2003 client on Windows laptop to running Entourage
X on a Mac OSX laptop.

here is the limited things I have found so far:
http://support.microsoft.com/default.aspx?scid=kb;en-us;832960

http://support.microsoft.com/default.aspx?scid=kb;en-us;832960

http://www.microsoft.com/mac/resources/resources.aspx?pid=resourcekits&rk=officex&article=/mac/officex/ork/Known_Issues_Entourage.xml




The kinds of features I am wondering about include:
-	Can I open another user?s calendar (or contacts folder, or tasks
folder) like I can on windows?
-	I know I can send meeting requests, but can I find out a user?s
free/busy time when I make a new meeting request?
-	Can I view my organization?s shared contacts (which are stored in a
public folder)?
-	Does the Delegates function work on the Mac?
-	How about when I am offline, can I access them in that case also?
-	Etc.

My deadline on this is this Monday at noon.

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Clarification of Question by sherpaj-ga on 08 May 2005 12:43 PDT

I also found this, but not sure how much of it applies to ver X.  I
assume Entoruage 2004 is an old ver and X is newer, but i'm not sure.

http://www.entourage.mvps.org/exchange/index.html